---
path: /studio/hathor/research-grounding
surface: studio
domain: hathor
auth: signed-in + studio entitlement
source: apps/oshun/web/src/app/studio/hathor/research-grounding/page.tsx
status: walked
last_walked:
  '2026-05-29 automated runtime walk (Playwright headless) — render, /v1 data
  (2xx), console/page-errors, expected content, screenshot verified; live
  screen-reader, touch, offline, and telemetry-delivery checks pending a manual
  AT pass. Evidence: WALKTHROUGH/results/runtime-sweep-2026-05-29.md; body
  re-derived 2026-06-03 from current source (lane-console architecture)'
---

# Studio Hathor · Research Grounding

## Purpose

Admin lane console that analyzes a passage for citation grounding — the real
grounding engine checks which claim positions carry citations and flags uncited
claims that require evidence. The operator pastes a passage and the
comma-separated citation character offsets, and the lane returns the grounding
analysis.

## Entry points

- **Quick-action link from `/studio/hathor/lore-fact-checking`** and
  **`/studio/hathor/sophia-citation-service`** (verify against those pages'
  sources)
- **Direct URL / bookmark** — yes; `alternates.canonical` set to
  `/studio/hathor/research-grounding`
- **Studio overview** — see
  [`../../studio-overview.md`](../../studio-overview.md)

## Layout regions

`page.tsx` renders inside `<ShellLayout active="studio">`:

- **Workspace** `<StudioHathorResearchGroundingWorkspace />`
  (`data-hathor-research-grounding-workspace`):
  - `WorkspaceHeading` `<h1>` — "Hathor Research Grounding Workspace"
  - Summary `<p data-hathor-research-grounding-summary>`
  - **Grounding Operations Lane** — `<h2 data-hathor-rg-lane-heading>`; holds the
    loading / unauthorized / error / form / result states, with
    `data-hathor-rg-engine-summary`
- **Route Map panel** `data-hathor-research-grounding-route-map` — `<h2>` "Route
  Map" listing the 5 `STUDIO_HATHOR_RESEARCH_GROUNDING_ROUTE_MAP` entries (sources
  / claims / evidence / governance child paths)
- **Quick-action lane** — two `Link.quickAction` anchors: Sophia Citation
  Service, Back to Studio workspace index

## States

- [ ] **Loading** — `data-hathor-rg-loading` while the GET catalog request is in
      flight
- [ ] **Unauthorized (admin-scope 401/403)** — `data-hathor-rg-unauthorized`
- [ ] **Error** — `data-hathor-rg-error`
- [ ] **Ready (form)** — passage textarea + citation-positions input + submit
- [ ] **Result** — `data-hathor-rg-result` with `data-hathor-rg-headline`,
      `data-hathor-rg-positions`, `data-hathor-rg-required`,
      `data-hathor-rg-uncited` (per-row `data-hathor-rg-uncited-row` carrying
      `data-claim-type`) or `data-hathor-rg-clean`
- [ ] **Validation error** — `data-hathor-rg-analyze-error`

## Interactions

### Grounding Operations Lane

- [ ] **Passage** — `<textarea data-hathor-rg-text>` (`<span>Passage</span>`)
- [ ] **Citation positions (comma-separated character offsets)** —
      `data-hathor-rg-positions` input
- [ ] **Submit** — `<button data-hathor-rg-submit>` "Analyze grounding" → POST
      `ANALYZE_ENDPOINT`

### Route Map panel

- [ ] **Route entries** — verify match with
      `STUDIO_HATHOR_RESEARCH_GROUNDING_ROUTE_MAP` (5 entries)

### Quick-action lane

- [ ] **"Open Hathor Sophia Citation Service workspace"** → `/studio/hathor/sophia-citation-service`
- [ ] **"Back to Studio workspace index"** → `/studio`

## Data & contracts

- **Reads**: `GET /v1/admin/hathor/research-grounding` (`RG_ENDPOINT`) — the
  grounding-engine catalog
- **Writes**: `POST /v1/admin/hathor/research-grounding/analyze`
  (`ANALYZE_ENDPOINT`) with the passage + citation positions
- **Realtime**: none
- **Caching**: client `fetch` on mount, `cache: 'no-store'`, `buildBffAuthHeaders()`
- **Auth/role check**: admin-scoped, fail-closed on 401/403; route additionally
  gated signed-in + studio by the BFF proxy

## Cross-references

- Parent: [`../../studio-overview.md`](../../studio-overview.md)
- Shell:
  [`../../../shell/04-auth-session.md`](../../../shell/04-auth-session.md)
- Sibling routes:
  [`./studio-hathor-sophia-citation-service.md`](./studio-hathor-sophia-citation-service.md),
  [`./studio-hathor-lore-fact-checking.md`](./studio-hathor-lore-fact-checking.md)
- Component sources:
  - `apps/oshun/web/src/components/studio/StudioHathorResearchGroundingWorkspace.tsx`
  - `apps/oshun/web/src/components/studio/StudioHathorResearchGroundingRouteMap.ts`

## Open questions / known gaps

- [ ] Hathor is `unconfirmed-v1` per `WALKTHROUGH/matrix/routes.csv`. Confirm
      whether the dedicated `/studio/hathor/` lane consoles ship at V1 or are
      internal-only.